16819980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9043}}^1$

素因数の和:9086

約数の個数: 48

約数和(自身を含む): 48620544

約数和(自身を除く): 31800564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 9043, 18086, 27129, 36172, 45215, 54258, 90430, 108516, 135645, 180860, 271290, 280333, 542580, 560666, 840999, 1121332, 1401665, 1681998, 2803330, 3363996, 4204995, 5606660, 8409990, 16819980]

約数ペア:

[(1, 16819980), (2, 8409990), (3, 5606660), (4, 4204995), (5, 3363996), (6, 2803330), (10, 1681998), (12, 1401665), (15, 1121332), (20, 840999), (30, 560666), (31, 542580), (60, 280333), (62, 271290), (93, 180860), (124, 135645), (155, 108516), (186, 90430), (310, 54258), (372, 45215), (465, 36172), (620, 27129), (930, 18086), (1860, 9043)]